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On Tuesday morning residents of the world's most polluted city encountered exposed to extremely polluted air that was classified as the "severe" level.

Alarming Air Quality Measurements

Multiple areas of the city registered an air quality index exceeding 500, which equals a tenfold increase over the healthy level set by the World Health Organization.

Certain monitoring stations, concentrations of dangerous airborne particles hit highs of 1,800, representing fifteen to twenty times higher than healthy levels.

Fireworks Restrictions and Current Developments

Since 2020, the government had enforced a complete ban on the sale and use of fireworks during Diwali due to their substantial impact to the deadly smog that engulfs the capital as the cold season approaches.

Yet earlier this year, the current regional leadership petitioned the judicial authority to seek a easing of the restrictions.

They proposed allowing "green crackers" – previously doubted by conservation groups as being only about 30% reduced emissions – as a balance between "tradition and environment".

Judicial Verdict and Reality

To the disappointment of public health and environmental campaigners, the court complied with the proposal, specifying that green firecrackers could be set off during limited periods throughout the celebrations.

Throughout the festival evening, there was considerable flouting of the time restrictions across the metropolis, with little enforcement regarding whether the pyrotechnics being used were actually the more environmentally friendly version.

Many monitoring devices throughout the capital showed air quality spiking around midnight to some of the worst measurements observed during the festival in at least the past three years.

Regional Effects

The proliferation of firecrackers during Diwali also sparked a controversy with neighbouring Pakistan, with representatives in Pakistani Punjab partially attributing worsening atmospheric conditions in Lahore on pollutants originating in India following the events.

Persistent Pollution Problem

Extremely elevated levels of air contamination in the city have remained as a significant challenge for over a decade and a half, with the condition showing no improvement.

Around Diwali, the levels of toxic airborne contaminants in the environment has been documented to spike to significantly exceeding the most severe records ever recorded in China's capital, which was formerly viewed as the world's most polluted city.

Multiple Pollution Contributors

This crisis in the city is attributed to a convergence of various sources including automobile exhaust, dust, construction activities, waste incineration and pollutants from farm burning in adjacent areas of Punjab and Haryana.

In these regions, rural residents regularly ignite agricultural waste to expedite field preparation, creating hazardous smog that then gets trapped over the city as winter air sets in.

Health and Financial Consequences

Both financial and medical consequences on the nearly 33 million inhabitants living in the Delhi area is significant, according to numerous research.

These hazardous conditions causes high levels of neurological, heart and circulatory and respiratory conditions, and can even lead to cancer.

The pollution is projected to be responsible for approximately 10k untimely deaths annually in the capital.